Organofunctionalization of Vanadium(III) Acetylacetonate Complex Over Aminofunctionalized SBA-15 for Sulfoxidation Reactions

2016 ◽  
Vol 4 (3) ◽  
pp. 212-218 ◽  
Author(s):  
Anish Lazar ◽  
K. S. Sanjush ◽  
A. P. Singh
Keyword(s):  
Acetylacetonate Complex

scholarly journals Synthesis of the Bacteriostatic Poly(L-Lactide) by Using Zinc (II)[(acac)(L)H2O] (L = Aminoacid-Based Chelate Ligands) as an Effective ROP Initiator

2021 ◽  
Vol 22 (13) ◽  
pp. 6950
Author(s):  
Renata Barczyńska-Felusiak ◽  
Małgorzata Pastusiak ◽  
Piotr Rychter ◽  
Bożena Kaczmarczyk ◽  
Michał Sobota ◽  
...  
Keyword(s):  
Schiff Bases ◽  
Antibacterial Properties ◽  
Antimicrobial Effect ◽  
Zinc Complexes ◽  
Antibacterial And Antifungal Activities ◽  
Aspergillus Brasiliensis ◽  
Acetylacetonate Complex ◽  
Distorted Trigonal Bipyramid ◽  
Composition Structure ◽  
Antibacterial And Antifungal

The paper presents a synthesis of poly(l-lactide) with bacteriostatic properties. This polymer was obtained by ring-opening polymerization of the lactide initiated by selected low-toxic zinc complexes, Zn[(acac)(L)H2O], where L represents N-(pyridin-4-ylmethylene) tryptophan or N-(2-pyridin-4-ylethylidene) phenylalanine. These complexes were obtained by reaction of Zn[(acac)2 H2O] and Schiff bases, , the products of the condensation of amino acids and 4-pyridinecarboxaldehyde. The composition, structure, and geometry of the synthesized complexes were determined by NMR and FTIR spectroscopy, elemental analysis, and molecular modeling. Both complexes showed the geometry of a distorted trigonal bipyramid. The antibacterial and antifungal activities of both complexes were found to be much stronger than those of the primary Schiff bases. The present study showed a higher efficiency of polymerization when initiated by the obtained zinc complexes than when initiated by the zinc(II) acetylacetonate complex. The synthesized polylactide showed antibacterial properties, especially the product obtained by polymerization initiated by a zinc(II) complex with a ligand based on l-phenylalanine. The polylactide showed a particularly strong antimicrobial effect against Pseudomonas aeruginosa, Staphylococcus aureus, and Aspergillus brasiliensis. At the same time, this polymer does not exhibit fibroblast cytotoxicity.

ChemInform Abstract: Synthesis and Characterization of Supported Vanadium Oxides by Adsorption of the Acetylacetonate Complex.

ChemInform ◽  
2010 ◽  
Vol 28 (2) ◽  
pp. no-no
Author(s):  
P. VAN DER VOORT ◽  
I. V. BABITCH ◽  
P. J. GROBET ◽  
A. A. VERBERCKMOES ◽  
E. F. VANSANT
Keyword(s):  
Vanadium Oxides ◽  
Synthesis And Characterization ◽  
Acetylacetonate Complex

Metal-involving halogen bond Ar–I⋯[dz2PtII] in a platinum acetylacetonate complex

CrystEngComm ◽  
2020 ◽  
Vol 22 (3) ◽  
pp. 554-563 ◽  
Author(s):  
Anton V. Rozhkov ◽  
Daniil M. Ivanov ◽  
Alexander S. Novikov ◽  
Ivan V. Ananyev ◽  
Nadezhda A. Bokach ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Halogen Bond ◽  
Oxidative Addition ◽  
Acetylacetonate Complex ◽  
Formation Step

The observed and confirmed theoretically metal-involving halogen bond Ar–I⋯[dz2PtII] provides experimental evidence favoring a XB formation step upon oxidative addition of ArI to PtII.

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